Black Bay 36

Name: Tudor Black Bay 36
Brand: Tudor
SKU: 79640

79640

The Black Bay lineage distilled into a refined 36 mm proposition.

Estimated market value

$2,500

Confidence: Moderate

An estimate from current market data — not an offer. Your actual value depends on condition, completeness, and authentication.

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Overview

The Tudor Black Bay 36 reference 79640 carries the storied Black Bay aesthetic into a more compact 36 mm stainless steel case, broadening the collection's appeal without compromising its sport-watch character. Introduced in 2023, it is powered by Tudor's in-house calibre MT5400, placing modern manufacture credentials at the heart of a classically proportioned package. Dial options in black, blue, and anthracite give collectors a measured range of expression within a coherent design language.

History

The Black Bay family traces its roots to Tudor's heritage dive watches of the mid-twentieth century, drawing on archival case shapes, domed crystals, and the brand's signature "snowflake" hand vocabulary. Over successive generations the line expanded in both complication and case sizing, and the 36 mm format represents a deliberate return to dimensions that echo Tudor's earlier sport references. The reference 79640, launched in 2023, is among the first Black Bay variants to pair the smaller case with a fully in-house movement, marking a meaningful step in the model's technical evolution.

Notable points

The 36 mm stainless steel case revisits proportions associated with Tudor's mid-century sport watches, offering a wearable alternative to larger contemporary references.
Calibre MT5400 is an in-house Tudor movement, bringing manufacture autonomy to a case size that earlier Black Bay iterations equipped with sourced ebauches.
Three dial variants — black, blue, and anthracite — share the same architecture, allowing collectors to choose tone without sacrificing design consistency.
The reference sits within the long-running Black Bay collection, one of Tudor's most recognised modern lines and a cornerstone of the brand's post-2010 identity.
As a 2023 introduction, the 79640 represents a current-production reference, meaning service infrastructure and parts availability are actively supported by Tudor.